Heater or cooler



C. MORROW HEATER OR COOLER Jan. 8, 1935.

Filed Jan. 20, 1933 4 Sheets-Sheet l INVENTOR Fwd - ATTORNEY Jan. 8,1935.

4 Sfieets-Sheet 2 Filed Jan. 20, 1933 lNVENTOR ATTORNEY HEATER OR COOLERFiled Jan. 20, 1933 4 Sheets-Sheet 3 7x I I Z9 INVENTOR [1" .6 61% W BYfind/1m ATTORNEY Jan. 8, 1935.

C. MORROW HEATER OR COOLER Filed Jan. 20, 1953 4 Sheets-Sheet 4 INVENTOR BY mm ATTORNEY :.This 1 invention relates. :toani eificiencyinthe transfer of 'heat unitsi A ther object oftheinvention is to providean improved "apparatus of thischaracter that is relatively simple inconstr idtioir; has large capam ity'andm'ay be econornicallyconstructedi" *Another object of the irive ntion isto provideanapparatus of' thi's character for med'of im proved tubing having ashape permitting them to be connected together into a unitary structureto provide a continuous flow surface. l

f *A further object'fofthe invention is to provide an improved tubingcapable of being formed in a ready manner vvitl 1 walls predeterminedthikne'ss 1'1." i 2 ,"eL Y 3' A still "further object of 'the--1nvention1s o provide improved tubing the walls of which are arran ed-1 so" "that'sections 'b ortionsithereof I other 1;

ma bjcorinectedtothewalls" or portions :toforina unitaryfstruc ure'l*oth er'objects 0f theinv'ention will b apparent: to thoseskille'd' inth'e art 'to whicii my invention relates from" the" following descripconnection with the 'a'cco W m"? 3' F H is a 'v'iew partly 'i in'sectiri'on' 'the'line 1-:- I

my invention.- i I h I Fig;- 2 'is a section on the line 2 of Fig*Figiais aplafi viewon the'lin'e '3 3 of Fig; Figi l is a fragmentarysection, inlarged.S l i'g. 5 is a' perspective view ofasportionnof 'ap-ipa'ratu's showing the arrangementiof the: tube. "1:1 Figifiisaperspective view howing" embodiment of the invention Fi'gs'; 7 and 8"are sections 8'-"8,' respectively, of =Fig1=i6 i Fig; "9 is via"perspective vie. bodirnent of the inventionfi -{*-'Fig'. l0 is a"section onthe line '10"10'of Fig. 'Figtll is'a'perspective' view of atube: section;

0 another em-" annularishaped'surface tributor i preferabl'y comprising;a skirt having;

aw 123s seri My. nvention comprehends animproved-shape Ofiit'llb:o'rtubirigi ioiltheircirculationnof a; heat" transfer'fmedium andproviding: a maximu'mt suri-i: IfaCETOVBI' WI'liCh liquidmm'ay2fiowctiThei, tubingcis of a shape permitting itltozbe-formed bytherexs'1111181011 YDI OCGSS,iiwhelehy l (911731111 advantageslare attainedgifor. example, the;wallszoftheztubing-ar'e seamless;:thetubingsmayi-bezof I- varying shapessihi cross section; 2 :the walls uofothe tubingli? may; be made of any desired thickness; a1l%"o'ftheisamet'o'r of! diff erentthicknesss and xflanges: may; 158i pro vided;whereby?sections";of theit'ubingmay beacon; necte'dTtOgetIIr ton'formzairiunitary structure; also;1theltubinglarnayibeYreadilyi-bent iitoform an coolr,'as hown in Figs;

1"to 5,iinc1usive=;=' I'nint p'rferrednforms of construe on, t e

tubing oft substantiallyitriangular":shape; "so,

that'th'e'imaximumiarea of tlieitubing walls may be utilized as flowsurfaces to insure highiefiicien'cyz For eiiamp'lei in Figs. 19 andi'10Tsubstaritially the entire areaof'i the tubingcwalls'ilareiutilized;whereas inf Figs; 1- to 8 inclusive,i approximately three-"fourths theall are utilizedi i -jRefering to F' s. o fig inclusive; of the dra 4ings, l indic'ates 'a: base or support;p e e v skelet construction' andcomprising 'a jpluralitii of -leg suitably connected-tea 'frame 3;-'-which;

in the arrangementfiof the circulating' tube for the h eat transfermediumxnerem shown," sf of. annularshapei' -The ir'arne 3 may be formedfrom angle'barsand provid withinverted. eaps" fitting "overf 'th'eilegs' zr legs :21 are ffprdvided with flanges 5'; which Tarescrew'threaded o the legsi '5 and' spermitiofv' adjustment tor'accommodate=-the legs to-any' nevennessr in the 1100 1egs' maybe 'bracedbytie-rods 6; indicates the tubi'nguthr-ou'gfi whic he eattransferflmediuihcirculates? on flows; In this em-i-f bodiment ioftheiiinvention', theictubin'g 7. is-abent into spiral formwithizit's'lconvolutions in 'contac't and" e bnnected I together.throughout L their-"1 length to form a'unitary member of substantiallyc'onical: sha'pe'ic 'lI he tubingflrmayabeformedifromia singlesectionathereof or.;.a plurality) ofvfsectionsscori-s ne'cted? "end Eitoend, depending upon 'the" size: orcapacitytof; the apparatus i \L;:..v,1 GL8 'indicateslkass antentiret'y a zreceive andcdisei a rdepending:circumferential-walla05 and a Jrecep-i taclewloafz :The ;,wal1 i: 10:;isconnected to thezuppeii convolutionof ithextubing Mofc'rmsia-zcontiguous surface :therewitlrrto"guideaor :distribute'thermillr to" thetzexterior wallsiiorethe etubing'. eThe; recepe flowwalls. Eachwall 26 is provided with horizontal division plates27"disposed substantially being formed in the walls la for this purpose.

The circulation spaces are closed by an outer wall 29 which fitswithinand' may be welded to the walls 7a, against the outer side edgesof the plates 27 and outwardly extending. pins 30, pref-' erably formedintegral with the adjacent wall 26. One of the walls29 is provided withfour. hollow bosses 3l, 31a, 31b,31c, which register with'open ingsformed in the wall 29 for communication with theadjacent circulationspaces.

".On'e pipe for supplying the heat transfer medium is connected to theboss .310. The medium flows throughth'e lowermost tube sections and thensucceeding-tube sections upwardly and is discharged'through the boss 31bto a discharge pipe (not shown) connected thereto, a plate 32 beingprovided in the space adjacent the bosses 31a, 31b, to effect flow ofthe medium through the boss 31b. The other supply pipe is connected tothe boss 31a. The medium supplied thereto flows into the adjacent tubesections and through them and the succeeding tube sections upwardly andis'discharged through the boss 31 to a discharge pipe (not shown) 32indicates receivers disposed at the lower ends of the flow walls andarranged to receive the treated milk therefrom. Each receiver 32 isprovided with a discharge pipe33.

In Figs. 9, 10 and 11 I have shown a modified form of constructionhaving a single seriesof tube sections 7x, disposed in a vertical plane.In this form of construction, each tube section 7:1: is of approximatelytriangular shape having an upper wall 3i and side walls 35 which curvedownwardly and-inwardly, and the; upper flange 150: extends along a lineintermediate the edges of the upper wall134 and the lower flange 15x.

'- dep'ends from the lower ends ofthe side walls,

35. the flanges being weldedwtothe flangesof adjacent tube sections:Forrthisxpurpose the opposite free edges o'fpthe, flangesaare cut away.

to form a recess for the'welding -:material,.17m.

"The opposite ends! of the iztube: 56011101184311? connected to theinner side walls ofaheaders 36; said walls being formed withopenings.Bflgaligned the tube-sections s'oithat. the heat transfer medium, whichis supplied through aninlet nipple 38 and discharged through the nipple39, may flow through all of the sections. When desired,

division plates may be mounted in the headers,

so that the medium will flow through the tube sections consecutively.-

Those portions of the walls 34 opposite the flanges 153: are inclinedslightly downwardly and outward to insure an even and rapid flow of themilk and each of these walls 34 is connected with the remaining walls 35of the tube section by curved portions, instead of sharp corners, sothat the tendency of the milk will be to adhere to the walls; also, thewalls 35 curve downwardly and inwardly so that a large portion of themilk will be conveyed to the innermost portion of the adjacent wall 34,thereby insuring contact of the milk with the maximum area of the tubethe type herein shown and at thesame time pro--v heat conductingmaterial, such as cork, hair and notintendedto be in aany;sens e lirning connected along their outer portions, and said 41 indicates receivershaving discharge xpipes; one thereof being indicated at 42. I. Ii i I'By'using' an extruded tubing, I am enabled-to form a conduitof thedesired shape in crosssece tion to provide forready and economicalassemly. andiat the same time surfaces a'rrangedzto permit flow of themilk thereoveriwithout danger.

of the milk flowing off these surfaces or dripping from one tube or.convolution to a lower tube or convolution. By using tubing oftriangular shape, I am enabled to usethemajor portion of the wall areathereof as the flowwall for the milk. As the milk flows overtheseexposed walls. in. a film, it is therefore rapidly treated "since a'rela-, tivelarge'volumev of heat transfer mediumzis circulatingrelative to these walls. I am also enabledruto eliminate a large amountof labor in shaping, fitting and soldering, heretofore .recIuire'd. insurface tubular heaters or coolers of 20: vide heattransfer walls ofapredetermined-nub, form thickness. The tubing is constructedof aluminumor aluminum alloy; therefore the tubing has long life since it does nothave to'be tinned and permits of ready cleaning at'all time's. In theforms of construction herein shown. in Figs. 1 to 8, inclusive, theinner walls 7a of the tubing form an uunobstructed inner surface, whichpermits such walls to be covered with nonot er well known insulatingmaterials, to prevent the radiation of heat. w 1 2.-

When desired,=the receptacle 10 and-.1 ac the collectors or receiversmay be prov-ide covers and/or the entire apparatus may. be. closed in acasing. I

To those skilled in thew, 1111 t whi tion relates, ny chan siin nstructonia Wid ly differing.. m od ment iandz appli at ons of the inventionwill suggest themselves without;

disclosuresyherem are.; purel-y. -,illus at What Lclaim isri A-sur-faceh aEE TE'QIUQQQlBX' o. n s ries,;;of tubing for a h t :transfe mediumhaving :a; rear wall andupper an lower ing; walls, each, said {rearswall having xte a ges alone. its nerr. a secured in edge togedge,relation t adjacent :npper andslower tubing; to arvfi t u u .'mansfOndis Iib t ezupper .por oabt midi-structu e,tan l s. the lower endof said structure, and means for supplying a heat transfer medium tosaid tubing for circulation therethrough.

2. A surface heater or cooler comprising tubing bent into spiral form,said tubing having a rear wall and upper and lower converging walls rearwall provided along its upperand lower edges with flanges welded in edgeto edge relation to the flanges of upper and lower convolutions of thetubing, means for distributing liquid on the upper convolution of thetubing, and'means for supplying a heat transfermedium to said tubing. r

3. A heater or cooler comprising tubing'formed of metal having arelative high co-eflicient of heat conductivity and comprising a rearwalland upper and lower walls disposed in converging relation andconnected along their outer portions, said rear wall being providedthroughout its upper and lower edges with continuous flanges extendinglaterally substantially in the plane of said wallandadapted to be weldedto: the flanges of adjacent tubing.

'4. A heater or cooler comprising tubing formed of-tmetal having arelative high co-eflicient of heat conductivity and comprising a rearwall and upper and lower walls disposed in converging re-, lation andconnected along their outer portions, said rear wall being providedthroughout its upper'andlower edges with continuous flanges ex-' tendinglaterally substantially in the plane ofsaid wall and adapted to bewelded to the flanges of adjacent tubing, and said' upper wall beinginclined outwardly and downwardly relative to said rear wall. 5. Aheater or cooler comprising tubingf formed of metal having a relativehigh co-efiicient of heat conductivity and bent into substantiallyspiral shape to form a conduit for a heat trans fer medium,saidtubinghaving a rear wall and upper and lower walls disposed inconverging- -relation and connected along their outer portions and saidrear wall being provided along its upper and lower longitudinal edgeswith continuous flanges extending laterally substantially in, the

i plane of saidwall, said flanges of adjacent convolutions being weldedtogether in edge to edge relation and forming with said. upper and lowerwalls contiguous flow surfaces. a

6. 'A surface heater or cooler comprising a series of connected tubeseach of approximately triangular shape and having upwardly anddownwardly projecting flanges extending longitudi-v nally from end toend thereof and adapted to be secured in edge to edge relation to theadjacent flanges of upper and lower tubes to'form a continuous flowwall, means for supplying liquid to the'upp'ermost tube of the series, areceiv'erbelow the lowermost tube and means for supply-' ing a heattransfer medium to said series of tubes. v

w 7. A surface heater or cooler comprising a series of connected tubeseach of approximately triangular shape and having an upperwall'and sidewalls connected along their lower ends,' a flange depending from thelower ends of said side walls, a flange disposed centrally of the upperwall and projecting upwardly therefrom, said flangesbeing arranged to besecured in edge to edge relation to the adjacent flanges of upper andlower tubes, means for supplying liquid to the uppermost tube'of theseries, a receiver below the lowermost tube, and means for supplying aheat transfer medium to said series of tubes.

-18. .A surface heater or cooler comprising a series .of connected tubeseach of approximately triangular shape and having an; inner wall, andupper wall anda side wall connectedto the outer edge of said upper walland the gloweredge of said inner wall, flanges: projectingupwardly.

and downwardly from said inner wallin the plane thereof and adapted tobe secured in edge to edge relation to the adjacent flanges of-upper andlowertubes to form with; saidupper and side walls a continuousflowjwall, means for supplying liquidsto theupper-most tube of theseries; ;a receiver below the lowermost tube, and means for supplyingagheatitransfer,medium to said series oftubes. I t i 9. .A surfaceheater or cooler comprising a ing bent into, spiral form; therear wall;of said tubing having continuous, laterally extending flanges along itsopposite longitudinal edges,'said flangesthroughout therespectivejhonvolutions of the form being securedin e'dge to edgerelation with the flanges of adjacent convolutions,. whereby theconvolutions are secured *together into,

a' unitary structure; means for distributing liquid on the upperconvolution of the tubing, and means for supplying a heat transfermedium to said tubing. 7 v j 10. A surface heater or cooler comprisingspiral tubing having its convolutions connected together throughouttheir length, said tubing having a rear wall and outwardly extendingupper and lower walls, said rear wall-having throughout its length andsubstantially in the plane thereof oppositely extending flanges securedtogether in edge to edge relation, whereby said upper; and

lower walls and said flanges form a-continuous flow surface. for liquid,meansfor distributing liquid on the upper convolution of the, tubing,and means for supplying a heat transfer medium tothe tubing forcirculation therethrough.

' 11. A surface heater or'cooler comprising a series of connected tubeseach havingfan upper wall and'converging side walls connected along

